INFO: task syz-executor.0:4088 blocked for more than 143 seconds.
Not tainted 5.18.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26800 pid: 4088 ppid: 4069 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa5a/0x4c70 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_timeout+0x19d/0x250 kernel/time/timer.c:1860
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
xfs_buf_iowait+0x8e/0x420 fs/xfs/xfs_buf.c:1577
__xfs_buf_submit+0x389/0x660 fs/xfs/xfs_buf.c:1657
xfs_buf_submit fs/xfs/xfs_buf.c:59 [inline]
xfs_buf_read_uncached+0x1bd/0x320 fs/xfs/xfs_buf.c:891
xfs_readsb+0x2a9/0x550 fs/xfs/xfs_mount.c:179
xfs_fs_fill_super+0x631/0x1880 fs/xfs/xfs_super.c:1491
get_tree_bdev+0x398/0x680 fs/super.c:1292
vfs_get_tree+0x7f/0x2c0 fs/super.c:1497
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x41e/0x1a30 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x1f5/0x260 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f750fa89049
RSP: 002b:00007f7510c58168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f750fb9bf60 RCX: 00007f750fa89049
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0
RBP: 00007f750fae308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe560ec78f R14: 00007f7510c58300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8ad773a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
2 locks held by kworker/u4:4/1018:
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88800fc69138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x766/0x13a0 kernel/workqueue.c:2260
#1: ffffc9000450fdb8 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x793/0x13a0 kernel/workqueue.c:2264
2 locks held by getty/3272:
#0: ffff88814c700098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900028e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9d7/0xed0 drivers/tty/n_tty.c:2075
1 lock held by syz-executor.0/4088:
#0: ffff88801c01a0e0 (&type->s_umount_key#52/1){+.+.}-{3:3}, at: alloc_super+0x192/0x9e0 fs/super.c:228
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x30/0xc0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x18f/0x1d0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0x88c/0xbf0 kernel/hung_task.c:369
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 90 Comm: kworker/u4:3 Not tainted 5.18.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5382 [inline]
RIP: 0010:lock_is_held_type+0x9f/0x140 kernel/locking/lockdep.c:5684
Code: 05 0e 30 77 77 85 c0 7f 12 e9 8a 00 00 00 83 c3 01 41 3b 9c 24 58 0a 00 00 7d 7d 48 63 c3 48 89 ee 48 8d 04 80 4d 8d 7c c5 00 <4c> 89 ff e8 99 fe ff ff 85 c0 74 d8 41 83 fe ff 41 bd 01 00 00 00
RSP: 0018:ffffc90001c2f910 EFLAGS: 00000093
RAX: 0000000000000005 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8ad772e0 RDI: ffff8880179e0a60
RBP: ffffffff8ad772e0 R08: 0000000000000000 R09: ffffffff8ca2db17
R10: fffffbfff1945b62 R11: 0000000000000001 R12: ffff8880179e0000
R13: ffff8880179e0a60 R14: 00000000ffffffff R15: ffff8880179e0a88
FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555d285e0680 CR3: 000000000aa8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
trace_lock_release include/trace/events/lock.h:58 [inline]
lock_release+0x522/0x720 kernel/locking/lockdep.c:5652
__raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
_raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:389 [inline]
__text_poke+0x5d4/0x8c0 arch/x86/kernel/alternative.c:1097
text_poke arch/x86/kernel/alternative.c:1121 [inline]
text_poke_bp_batch+0x435/0x6c0 arch/x86/kernel/alternative.c:1436
text_poke_flush arch/x86/kernel/alternative.c:1542 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1539 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1549
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x15f/0x220 kernel/jump_label.c:177
static_key_enable+0x11/0x20 kernel/jump_label.c:190
toggle_allocation_gate mm/kfence/core.c:764 [inline]
toggle_allocation_gate+0xe3/0x310 mm/kfence/core.c:756
process_one_work+0x841/0x13a0 kernel/workqueue.c:2289
worker_thread+0x598/0xec0 kernel/workqueue.c:2436
kthread+0x299/0x340 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess):
0: 05 0e 30 77 77 add $0x7777300e,%eax
5: 85 c0 test %eax,%eax
7: 7f 12 jg 0x1b
9: e9 8a 00 00 00 jmpq 0x98
e: 83 c3 01 add $0x1,%ebx
11: 41 3b 9c 24 58 0a 00 cmp 0xa58(%r12),%ebx
18: 00
19: 7d 7d jge 0x98
1b: 48 63 c3 movslq %ebx,%rax
1e: 48 89 ee mov %rbp,%rsi
21: 48 8d 04 80 lea (%rax,%rax,4),%rax
25: 4d 8d 7c c5 00 lea 0x0(%r13,%rax,8),%r15
* 2a: 4c 89 ff mov %r15,%rdi <-- trapping instruction
2d: e8 99 fe ff ff callq 0xfffffecb
32: 85 c0 test %eax,%eax
34: 74 d8 je 0xe
36: 41 83 fe ff cmp $0xffffffff,%r14d
3a: 41 bd 01 00 00 00 mov $0x1,%r13d